//
// Created by LiuYou on 2021/5/8.
//

#include <cstdio>
#include <unistd.h>

int main() {
    std::putchar('a');
    write(1, "b", 1);

    std::putchar('a');
    write(1, "b", 1);

    std::putchar('a');
    write(1, "b", 1);

    std::putchar('a');
    write(1, "b", 1);
    // 输出结果为 bbbbaaaa
}